Platform Removal; Scissor Arms Removal - JLG 1930ES Service Maintenance Manual

3.17 PLATFORM REMOVAL

1. Support the platform using an overhead crane with
straps capable of lifting at least 250 lbs (114 kg)
(See Figure 3-47.). Refer to Section 3.16, Arms and
Platform Positioning and Support.
2. Disconnect the battery plug at the chassis. Discon-
nect platform cable and foot switch cable, if applica-
ble, from railing. Route the cables out through the
hole at the rear of the platform to free platform of any
constraints. If platform is equipped with an outlet
plug, disconnect and route cable out of platform.
3. Remove the bolts attaching the pins and slide
blocks at each corner to the arm stack. Carefully
remove the four pins attaching the platform to the
arm stack.
4. Lift the platform from the armstack and set aside.
NOTE: When attaching platform back onto scissor arm
assembly, follow removal procedures in reverse
order.
NOTICE
FOR MACHINES EQUIPPED WITH LOAD SENSING SYSTEM (LSS),
ENSURE ARROWS ON THE LSS PIN ARE POINTING DOWN
BEFORE INSERTING BOLTS INTO PIN. NOT APPLICABLE FOR
MACHINES WITHOUT LSS.
3121166
SECTION 3 - CHASSIS & SCISSOR ARMS

3.18 SCISSOR ARMS REMOVAL

1. Remove platform (refer to Section 3.17, Platform
Removal).
2. Disconnect all wiring and cables attached to scissor
arm assembly.
3. Remove lift cylinder (refer to Section 4.6, Lift Cylin-
der Removal).
4. The scissor arms can be removed as a complete
unit or individually.
Removing scissor arm assembly as a complete unit:
1. Remove the pin attaching the bottom scissor arms
to the rear of the frame by removing the bolt.
2. Place two straps around each end of the the entire
scissor arm assembly. Using an overhead crane,
slowly and carefully move the arm stack forwards so
that slide blocks at front of machine slide out the
front of the slide channel on the frame.
NOTE: Overhead crane and straps must be capable of lifting
at least 1545 lbs (701 kg).
3. Once slide blocks are clear of machine, the scissor
stack can be moved to a more desirable location for
further arm disassembly.
Removing scissor arms individually:
1. Start with the top arms (closest to platform).
2. Secure each arm section being removed using an
overhead crane with suitable lifting straps.
3. Remove the bolts securing the connecting pins in
place.
4. Remove the pins from the arms.
5. Remove the arm section from the machine using the
overhead crane.
6. Repeat previous steps for remaining arm sections.
NOTE: When attaching scissor arm assembly back onto
frame, follow removal procedures in reverse order.
Self locking fasteners, such as nylon insert and thread
deforming locknuts, are not intended to be reinstalled
after removal. Always use new replacement hardware
when installing locking fasteners.
– JLG Lift – 3-63